﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using CalcClassLibrary.Interface;
using CalcClassLibrary.Model;

namespace CalcClassLibrary
{
    /// <summary>
    /// TODO: Update summary.
    /// </summary>
    public class MainCalculator
    {
        #region Private Fields

        private IBasicCalculator _calculator;
        private CalModel _data;

        #endregion

        #region Contructors

        public MainCalculator()
        {
            this._calculator = new BasicCalculator();
        }

        #endregion

        #region Properties

        public CalModel Data
        {
            get { return _data; }
            set { _data = value; }
        }

        #endregion

        #region Methods

        public int Calculate()
        {
            int result = 0;
            if (this.Data != null)
            {
                switch (this.Data.Operation)
                {
                    case "Add":
                        result = this._calculator.Add(this.Data.IntegerValue1,
                            this.Data.IntegerValue2);
                        break;
                    case "Sub":
                        result = this._calculator.Sub(this.Data.IntegerValue1,
                            this.Data.IntegerValue2);
                        break;
                    case "Mul":
                        result = this._calculator.Mul(this.Data.IntegerValue1,
                            this.Data.IntegerValue2);
                        break;
                    case "Div":
                        result = this._calculator.Div(this.Data.IntegerValue1,
                            this.Data.IntegerValue2);
                        break;
                }
            }
            else
            {
                Console.WriteLine("There is no data to be calculated!");
            }

            return result;
        }

        #endregion
    }
}